Complete DIY kit that includes all necessary components to build a thumb light with 81 LEDs. Advanced MCU powered by STC8G1K08 microcontroller, allowing for customizable light patterns. Flashing control feature enables easy manipulation of light sequences for dynamic displays. Ideal for beginners and enthusiasts to practice and enhance their soldering skills. Operates on a safe 5V DC power supply, complete with a power cord for convenience. This DIY kit is perfect for those looking to create their own thumb light. With 81 LEDs and an advanced microcontroller, users can customize light patterns and sequences to suit their preferences. The kit is designed for both beginners and experienced hobbyists, providing an excellent opportunity to practice soldering skills. The safe 5V DC power supply ensures reliable operation, making it a great addition to any electronics project. Color: Green Material: PCB Package Contents: 1* DIY kit 1* Power cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.